When Lori tells her to make her bed because she needs a ride to the mall, she thought Lori meant it literally, and builds a bed.
She failed her driving test 12 times, one of her failures included crashing Vanzilla into a tree, and setting a fire hydrant to spring a leak, with a nun screaming at the top of her lungs in a panic, and a paper boy hanging by a branch.
When she goes to the DMV to take her driving test, she goes the wrong way.
She fails her test again because she believes that everything she did on Lincoln's video game is supposed to happen in real life.
She doesn't know how to drive a lawnmower, and drives through the hedges.
She doesn't know about car parts or where they are located.
She accidentally drives Vanzilla into a swimming pool, and thinks it's the carpool lane.
She wastes water by running it and not even using it.
When Lincoln tells her to use a moist towelette to clean herself, she tells him she's showering and closes the curtain on herself even though she's fully dressed. Lincoln does this at the end of the episode as well.
When Lincoln takes the TV away, Leni picks up the remote and thinks their neighborhood is on TV.
When Lincoln takes the fridge away, Leni comes in to get a drink of water and ends up getting nothing but air. She even demands a refill when she and the other girls get their stuff back.
When Lincoln asks for help after Lana hogtied him, Leni comes back for him, apologizes, and carries him like a handbag instead of untying him.
Luna tells Leni to sing backup, and she sings the actual word "backup" as opposed to the actual lyrics. Then Luna tells her she has to sing what's on the page, to which she responds by singing "what's on the page" literally.
During the family's performance, Leni walks backwards, claiming she's a "backup" dancer and falls off the stage.
After Lincoln and the girls trap Luan in a crate, they make fun of her with crate-related puns. Leni made a joke saying, "You're in a crate!" and laughs at that, while the others just stare at her confused. Lincoln says that they should put it to bed.
When the other girls are hiding from Luan's pranks and run out of food thanks to Lana eating it all, they suggest to draw straws. Leni just concedes to going and sacrificing herself because she claims to be a terrible artist, meaning she would make a terrible drawing of a straw.
While Lincoln avoided Luan's kitchen direction arrows, Leni follows them to who-knows-where, and thanks each and every one of them.
When Lori needs a plan to get Bobby back from Lincoln, Leni suggests that she hang out with Ronnie Anne because she thinks Ronnie Anne would be like the sister Lori never had. Lori already has nine sisters by the way Leni meant it. It wouldn't be so dumb if she meant it the other way around, though.
When everybody is complaining that Lola knows their secrets, Lynn thinks there's a rat (a snitch) in the group. Leni thinks Lynn was referring to a real rat, as she jumps in fear and asks where it is before Lisa corrects her by giving her the correct meaning.
When Lincoln realizes Lola was the true rat, he tells his sisters that her name rhymes with "granola". Leni presumes that Lisa was the rat.
When Leni came downstairs wearing her new dress, she thought Lori holding her dress (which was the same one Leni bought) was a brand new mirror that was installed.
When Lincoln asks Lori and Leni how they resolved their fight over the dress, Leni says that Lori gets to wear it on any day of the week that ended with "Y", and she gets to wear it the rest of the time. In other words, Lori gets to wear it every day of the week (since the days of the week all end with "Y"), while Leni will never have a day to wear it.
Leni claims her life's work is a six-piece kiddie puzzle.
When Lynn teaches Leni and Lola to fight a dummy just in case if a burglar broke in, Leni flirted with the dummy instead of attacking, claiming it looked cute. When Lola attacked it, however, Leni chastised Lola for attacking it, claiming "he" liked her.
When the Loud kids were cheering when Lincoln informed them that the burglar was caught, Leni still had feelings towards the dummy (which she named Donnie), and claims that she and "Donnie" should've ran away to Mexico while they had the chance.
Leni claims she has a deadly spray to use against the burglar called "Fatal Encounter". However, Lori points out she's just holding a perfume sample.
When Leni asks Clyde if he wants a partner to play with on the seesaw, Clyde denies the offer, saying that he has Lincoln (which is actually a rock with Lincoln's face painted on it). Leni, not noticing that it's not the real Lincoln, says hi to "him". Later, when the twins attacked Clyde for ruining their sandcastle, Leni, needing to go to the bathroom, asked "Lincoln" to watch the twins while she's gone.
Debatable: She gave Lynn Sr. a 10 just for using skates to cut up hotdogs as if he was actually in a figure skating competition.
She hides the ingredients for Lynn Sr.'s goulash in his slippers and robe, which leads to the parents finding out the kids sabotaging the meal.
When deciding on what dish to make for their parents, Leni suggests they make goulash. When Lincoln tells her that goulash is one of the dishes their father cooks weekly, and want to avoid it, Leni claims that she misses it.